23005525 has 12 divisors (see below), whose sum is σ = 28873152. Its totient is φ = 18181040.

The previous prime is 23005519. The next prime is 23005529. The reversal of 23005525 is 52550032.

It is not a de Polignac number, because 23005525 - 2³ = 23005517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23005496 and 23005505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23005529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3469 + ... + 7618.

It is an arithmetic number, because the mean of its divisors is an integer number (2406096).

Almost surely, 2^23005525 is an apocalyptic number.

23005525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23005525 is a deficient number, since it is larger than the sum of its proper divisors (5867627).

23005525 is a wasteful number, since it uses less digits than its factorization.

23005525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11180 (or 11175 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 22.

The square root of 23005525 is about 4796.4075097931. The cubic root of 23005525 is about 284.4094677056.

Adding to 23005525 its reverse (52550032), we get a palindrome (75555557).

The spelling of 23005525 in words is "twenty-three million, five thousand, five hundred twenty-five".